Some of the biggest names in Hollywood are joining together to fight Georgia’s latest motion to ban abortions after the baby’s heartbeat is detected, dubbed the “Heartbeat Bill.”

A letter penned by Alyssa Milano, addressed to Georgia House Speaker David Ralston and Georgia Governor Brian Kemp, has been signed by more than 50 actors and actresses who threaten to boycott filming in the state if the bill passes.

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“This dangerous and deeply flawed bill mimics many others which have already been deemed unconstitutional,” Milano’s letter reads. “As men who identify as small-government conservatives, we remind you that government is never bigger than when it is inside a woman’s body or in her doctor’s office. This bill would remove the possibility of women receiving reproductive healthcare before most even know they are pregnant and force many women to undergo unregulated, hidden procedures at great risk to their health.”

The Georgia House of Representatives has yet to vote on the bill but according to Deadline, Kemp is expected to sign it if and when the House passes it.

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Amy Schumer, Debra Messing, Alec Baldwin, Sarah Silverman, Christina Applegate, Ben Stiller, Sean Penn and Don Cheadle are just a few of the names to have signed the letter. They vow to “do everything in our power to move our industry to a safer state for women if H.B. 481 becomes law.”

Georgia is the third-biggest U.S. state for TV and film production, with high-profile projects filmed in the state including the “The Hunger Games” trilogy and TV series such as “The Walking Dead”, “Stranger Things” and “The Vampire Diaries”.