How to Act in a Movie: What Really Changes on a Film Set

Learning how to act in a movie is mostly learning to do your job in pieces. You might shoot the last scene of the story at 7 a.m. on your first day, kiss someone you met an hour ago, then repeat a two-line exchange 14 times while a crew of 40 waits on a cloud to move.

The acting itself is the same craft you’d use anywhere: know what you want, listen, respond. What throws first-timers is everything around it. A stage actor gets the whole arc every night and a beginner in class gets a full scene with a partner, but a film actor gets 30 seconds at a time, out of order, with a lens in their face and a piece of tape on the floor they aren’t allowed to look at. Most of what follows is how to keep a real person alive through all that, plus how to land a first movie part if you don’t have one yet.

The work, step by step

1. Build your character’s timeline before day one. Movies get scheduled around locations, daylight and who’s available, not around your character’s story. If the production has a house for two days, every scene in that house gets shot in those two days, even if they’re months apart in the plot. So you’re the only person guarding your character’s arc. Go through the script and list every scene you’re in, in story order. Next to each one, write what just happened, what your character knows at that point and where they are emotionally on a scale of 1 to 10. Then, when the call sheet arrives, look up that day’s scenes on your list. If you’re shooting scene 84 on Tuesday and scene 12 on Wednesday, you’ll know the character has lost their job in one and hasn’t even met the boss in the other. Keep this list in your bag. Ten seconds with it before a take can save you from playing grief that hasn’t happened yet.
2. Learn lines for short bursts, and expect them to change. You’d think film would be easier on memory because scenes come in short chunks, and it is, but the pressure is different. There’s no prompter and no second chance tomorrow night, and with a crew standing around, time is money. A low-budget feature might shoot five or more script pages a day, which is a lot of dialogue to have ready at 6 a.m. Know each scene so well that you can say it while making coffee, and know the other character’s lines too, because you’ll need to overlap, interrupt and react. Learn the lines without a fixed rhythm or fixed line readings, since the director may hand you a new blocking idea and a different mood on the spot. Writers also change things. You may get revised pages the night before, or a changed line 10 minutes before you shoot. If you’ve been drilling thoughts instead of sounds, a swapped word won’t knock you over.
3. Find out the shot order and save your best for the close-up. A single scene usually gets filmed several times from different angles. That’s called coverage. The typical order is a wide master of the whole scene, then medium shots, then over-the-shoulders and close-ups, first on one actor and then turned around on the other. A two-page dialogue scene can easily eat half a day. Your job is to pace yourself. Ask the second assistant director or the director, “What are we shooting first?” and find out when your close-up is. If the scene needs tears or a blowup, you don’t want to spend everything on take six of a wide shot where the audience can barely see your face. Keep the master truthful and keep the emotion available, then go all the way when the lens moves in. Your size changes with each shot too, and our on-camera acting guide goes through how to adjust from frame to frame. If you only have one take in you of something hard, tell the director before you roll.
4. Hit your marks and match what you did. A mark is usually a small T of tape on the floor showing where you stop so you’re in focus and in the light. You can’t look down at it on camera, so practice finding it by feel. During the rehearsal, count your steps from your start position, note what lines up in your peripheral vision (a table edge, a light stand) and walk it two or three times. An inch or two off can put you out of focus or block your partner. You also need to match. If you picked up the cup on “I never said that” in the wide, you need to pick it up on the same word in the close-up, in the same hand, or the editor can’t cut the takes together. The script supervisor tracks this, and they’re your friend, so ask them when you’re unsure. Keep your physical business simple for this reason. Every prop you touch and every sip you take is something you have to repeat exactly, take after take. Pick two or three actions you can live with for eight hours.
5. Stay fresh through take after take. Most of a film day is waiting. You might sit for three hours, then have 10 minutes to be devastated. Don’t burn energy chatting at full volume all day, and don’t sit rigid in your trailer either. Find a routine that gets you up to speed fast: a few minutes on your timeline, a short walk, running lines quietly. Between takes, don’t try to repeat the last take because it “worked.” That’s how a performance goes dead. Keep the same objective and the same marks, but go back to actually listening, and change the small things you’re free to change, like how hard you push on one tactic. If a director gives you a note, take it simply, without asking why the last one was wrong. When it’s your partner’s close-up, you’re still on the job. Read your lines off camera with full commitment, standing where you’re told, because their performance depends on what you give them. If you can’t be there, a script supervisor or an assistant may read. Eyeline matters here too, so look exactly where you’re told, right beside the lens and not into it.
6. Land your first part in a movie. If you’re searching for how to get into a movie with no credits, skip the idea of being discovered and start with films that need people. Student filmmakers at local colleges and film schools cast constantly, and many of them post on Backstage, Actors Access, and Facebook groups for your city. Short films and low-budget indies are the normal first step, and they hand you footage for a reel. Next, make a free or low-cost profile on the main casting sites, use a clear headshot and submit to anything that fits your age and type. Plan on sending a self-tape, because that’s how most first rounds now work. Extra work through an agency like Central Casting won’t usually lead to lines, but one day on a big set teaches you what “back to one” means and how a crew moves. Never pay for an audition. As your footage grows, it’s far easier to approach agents, and they can get you into the rooms where bigger film roles are cast.

Common pitfalls

• Giving your biggest emotional take in the wide shot at 8 a.m., then having nothing left for your close-up at 2 p.m.
• Looking down at your mark, or into the lens, because nobody warned you how close the camera would be.
• Adding lots of business with props and food that you then have to match perfectly in every take.
• Doing the same line reading over and over because a take felt good, instead of going back to listening to your partner.

Pro tip: Shuffle your scenes before you rehearse. Pick any scene at random, check your timeline for 10 seconds, run it, then jump to a scene from a totally different point in the story. If you can land in the right emotional place within a couple of breaths, shooting out of order won’t scare you on your first day.

How Actry fits in

Film schedules jump around, so you need lines you can pick up from any page. Import your script into Actry, drill each scene with the line memorizer, and run scenes out of order with the AI scene partner, the same way your call sheet will hand them to you. Record a few takes in self-tape mode and listen to the voice feedback to check that each one still sounds like a person thinking.

Frequently asked questions

Filed under Genres. Tagged: film acting, movie acting, on set, on camera, genre.