Complex sentence: He is awakened at the hospital by two individuals who were searching for him, who reveal themselves to be Rocket Raccoon and Gamora of the Guardians of the Galaxy, saying that they need to talk to Sam about his father.
Split into simpler sentences: He is awakened at the hospital by two individuals who were searching for him. The individuals reveal themselves to be Rocket Raccoon and Gamora of the Guardians of the Galaxy saying that they need to talk to Sam about his father.