Johnny Knoxville wants Bam Marghera to “get well and stay well”. The ‘Reboot’ actor admitted he hasn’t spoken to his ‘Jackass’ co-star – who has absconded from court-ordered rehab a number of times this year – for around 18 months but he still “loves” his old friend and hopes he can stay sober. He said: “I haven’t spoken to Bam in about a year and a half, give or take six months. [‘Jackass’ director] Jeff Tremaine, Steve-O and I had a face-to-face meeting with Bam and his wife, trying to figure out how to get him help. “Then we had a Zoom as a group not long after that, and that was the last t…