The Goonies
Cohen claimed in "The Goonies" DVD commentary track that every role he played as a child had him wearing either a Hawaiian shirt or a pair of plaid pants, and director Richard Donner had the brilliant idea to put him in both for "The Goonies". Before "The Goonies" started filming, Cohen contracted chickenpox. Afraid that they would re-cast the role, he told no one of his illness and showed up to work anyway. According to the commentary track on "The Goonies" DVD, the chickenpox on Cohen's chest can be seen during the famous "Truffle Shuffle" sequence.