Buried ($2 million budget)
If someone said that Ryan Reynolds would spend the entirety of a film in a coffin would make millions, many people would have doubted the statement. But it turns out to be true, The 2010 film was made for only $2 million but made $20 million at the box office.
It tells the story of Reynold’s character, a civilian working in Iraq who wakes up one day after being attacked, to find himself buried in a wooden coffin with only a few tools to survive. The film was praised for putting a new spin on buried alive films.