“Spielberg’s and Tarantino’s internet bet: at home at Uwe Boll – concidered Hollywood’s worst movie maker – be the first that writes a killer logline under twenty words; or star in Boll’s next disaster movie.”

First off you spelled considered wrong. And it’s too wordy, doesn’t flow well. Everyone knows Boll’s films suck so you could probably take that part out.

“Spielberg?s and Tarantino make a bet: write a killer logline under twenty words or star in Uwe Boll?s next disaster movie.”