7 brilliant sci-fi movies under 90 minutes you can finish tonight

It’s the 21st century, and our lives are busy. We have to worry about work, connect with family and friends, tend to our health, follow the news, and somehow squeeze in some entertainment to make sure we stay sane. Who has time to sit down for the 3-hour-plus Avatar movies (which aren’t that great anyway)? Where are the sci-fi movies that keep our busy schedules in mind?