Sharon, hard to say without knowing specifics.
In general, it's always advisable to finish what you start... even if it's similar to a preexisting project.
Sharon, hard to say without knowing specifics. All I know is the business model Hollywood has had for decades -- similar but different (see below link) -- seems to be moving in the direction of 'more similar' as the suits are increasingly afraid to do anything original.
In general, it's always advisable to finish what you start... even if it's similar to a preexisting project.