The 4 Juniors Spider-Man subtheme was a small, 2 set release, that was a larger piece version of the original Spider-Man 2 theme. It was also the only movie theme for the 4 Juniors theme.
4 Juniors, also known as 4 Plus was a theme introduced in 2003 by LEGO that targeted children of four years old or more. It was a successor to the Jack Stone theme and used regular LEGO bricks but came with a different kind of minifigure that was larger then the standard minifigures. The sets tended to have a small number of larger pieces, in order to be easy to put together.