Complex sentence: He's jarred out of his reverie by Tyra Banks (as herself) saying excuse me to him (she wants to buy a Jet magazine) Thrilled Shawn tries to charm her into a date with him.
Split into simpler sentences: He's jarred out of his reverie by Tyra Banks (as herself), who wants to buy a Jet magazine. Thrilled, Shawn tries to charm her into a date with him.