June 10 THE ADVENTURES OF SHARK BOY AND LAVA GIRL The prolific Austin , Tex.-based filmmaker Robert Rodriguez -LRB- he also has '' Sin City '' in current release -RRB- imagines the adventures of a lonely 10-year-old boy -LRB- Cayden Boyd -RRB- and his two imaginary playmates , Shark Boy -LRB- Taylor Lautner -RRB- and Lava Girl -LRB- Taylor Dooley -RRB- .