Another actor was injured Monday during a performance of ‘Spider-Man: Turn Off The Dark’. The unidentified actor fell between 10 and 30 feet according to conflicting reports. Equipment also fell into the audience. The actor has been hospitalized in serious condition.

This is the fourth injury so far for the production. Actress Natalie Mendoza received a concussion during a preview performance when a large rope hit her in the head.

Originally set to open on January 11, 2011, the now most expensive production in Broadway history ($65 million) has been pushed back to February 7.