わたしは ぱそこんで えいがを みます / I watch a movie on PC.

ぱそこん

this means "PC(Personal computer)".

えいが

this means "movie".

みます

this means "see, watch, look". This is masu-form.

ぱそこんで

the particle "で" means "by". It is the method marker in this case. This means "by PC".

わたしは　ぱそこんで　えいがを　みます

So, this means "I watch a movie by PC.".