No planet busting
Typical dbz desolate area
Slug stomps. I did some reasearch and i came up with this: The movie in witch Lord Slug appears is between the episodes that Piccolo fights with Frieza in his second form and before Frieza goes in his Third Form. Looking at the official powerlevels during that period of time puts Goku's PL at 3,000,000, that 2 million more than Frieza who was around 1 million. Slug was pummeling Goku at base and could only be hurt when Goku went False SSJ and even then Slug took it like a man. Slug then transforms into his Giant form and gaining even more power and at that point he should be well above 3,000,000. I think Frieza Third Form is more suited, however we don't know how strong Frieza is in his Third Form as there is no offical PL for him.
Oldboy is a perfectly serviceable and unremarkable Hollywood thriller. This, incidentally, makes its existence all the more pointless.