SPOILERS!

[skimpole]

The Wicker Man (1973)?

Correct. Your turn.

[Masha]

The Wicker Man (1973)?

Correct. Your turn.

Oh. Wow! Thanks. I had not expected that.

I will give an easy one so that the game may move on quickly:

Much of the principal cast had appeared together in a successful movie a year prior. The two movies are not related.
Director's first movie as full-fledged director.
Murder caught on film.

[Masha]

More:

The top-billed star has only a small role.

One of the murder victims was left-handed.

[Masha]

More:

Setting is a movie studio.

Murderer falls from an overhead walkway.

[Masha]

More:

First murder victim is shot during the filming of a movie scene.

[KayFrancis]

Great clues, maybe a timeframe for when film takes place or timefrane when was made would help

[Masha]

It is a 1930s comedy murder mystery. The story is contemporary with the production.

[KayFrancis]

The Preview Murder Mystery ?

[Masha]

That is so very close!

This one is a tiny bit earlier.

More:

The top-billed star is best known for a different genre.

[CinemaInternational]

The Death Kiss (1932)?

[Masha]

The Death Kiss (1932)?

YES! YES! YES! YES!

I believe it is your turn now.

[CinemaInternational]

A bride is severely ticked to find another woman trying to seduce her husband on their wedding night.

[KayFrancis]

That happens in Heartbreakers.
Not sure if your clue is a plot point or the ending of the film as the Spoiler? If it's a plot point, then my guess is Heartbreakers ?

[CinemaInternational]

It's just a plot point, but no, it's not Heartbreakers (although I like that film). This is from a while earlier.

Next clue:

A man and a woman both eat a piece of paper to avoid detection.

[HoldenIsHere]

It's just a plot point, but no, it's not Heartbreakers (although I like that film). This is from a while earlier.

Next clue:

A man and a woman both eat a piece of paper to avoid detection.

CI, I think we need another clue.