Complex sentence: Her break came with a bit part in 1986's "Pretty in Pink" which led to more substantial roles in "Sweet Revenge" with Nancy Allen and "Cocktail", with Tom Cruise and Elisabeth Shue.
Split into simpler sentences: Her break came with a bit part in 1986's "Pretty in Pink". Followed by bigger parts in "Sweet Revenge" with Nancy Allen and "Cocktail", with Tom Cruise and Elisabeth Shue.