Sommers attended St. John's University in Collegeville, Minnesota in the United States and the University of Seville in Spain. After several years in Europe as a theater actor and manager tried by musical groups, he returned to the United States back, where he attended the USC School of Cinema-Television, and then wrote his first screenplay. In the beginning he was involved in several films for young people. So he filmed 1993, his own screenplay of The Adventures of Huck Finn, then he wrote the script for Tom and Huck. In between was still the filming of another children's book, The Jungle Book. He produced a television version of Oliver Twist starring Elijah Wood and Richard Dreyfuss. With Octalus - Death from the deep (1998) he moved into the horror specialist. The Mummy (1999) was a remake of a Boris Karloff - classic from 1932. According to the sequel The Mummy Returns three years later he attacked the figure of the Scorpion Kings introduced there in a spin -off again. After he already took up one of horror figures by Universal Pictures with the mummy, summer, ordered his race against Van Helsing a whole series of them. It is intended as a director of the comic book movie Flash Gordon.
Summer is married to Jana summer since 1993 and has two children.