What's this movie?

Its about a teenager.
Him and his friends like the blues brothers.
His mom invented post-its and lunchables.
The teenage boy sells paper at school the last day or smthn he buys pizza for the whole school.
He has a sister. The dad kind of favors the sister.

I really can't remember what movie this is.
If anyone knows let me know!

:) thanks

Well, now, you're not thinking about a movie at all, but rather the short-lived TV series Do Over, a bit of a time travel fantasy. Specifically, you seem to be referring to Episode 3, "Investing in the Future": 'Joel is tired of living short on money so he decides to use his future knowledge to make some big bucks. He gets his "old" job by phone and start to make money by selling paper. All the phone usage raises suspicion on Principal Rudd, who thinks he's selling drugs. He calls in Joel's parents for an urgent meeting, where Joel reveals the truth and decides to quit (even though his father though it was great that Joel was so young and yet made so much money), because he realized he is not 34 and thus has to live the normal life of a teenager - and not let his best friend down for choosing work over The Blues Brothers concert. He gives the rest of the money for their parents to buy their new hot tub and invest on Intel. But his father won't risk the money on that – or on Karen's newest invention: post-its! - no, he prefers to invest it on Beta machines. '