Harold Lloyd and Mildred Davis, Haunted Spooks
In far less upbeat news, Harold Lloyd had a horrible injury to his hand while making Haunted Spooks. While posing for publicity photos, a prop bomb exploded in his hand. His face was badly burned and he was temporarily blinded. Even worse, he lost two fingers due to the horrific accident.
In future films, he is always seen wearing a prosthetic glove on his injured hand.
In spite of this, however, he (remarkably!) always insisted on doing his own stunts.