Although the `Wall Street` actor is confident he has beaten the disease after the tumour has been successfully removed following six months of treatment, is still angry the illness wasn`t diagnosed sooner. Speaking about when he first became ill at the beginning of last year, Michael said: "I went and saw a round of doctors in January-February and they didn`t pick up anything. They gave me some antibiotics and then I went and saw a round of doctors again in May and still nothing. Then my tongue started bothering me and by the time I took off for the summer and came back in August, I told my doctor `Hey, something`s going on.` " The 66-year-old star - who has children Dylan, 10, and seven-year-old Carys with wife Catherine Zeta-Jones, as well as 32-year-old Cameron from a previous marriage - says he then went to see a specialist in August, who noticed a growth under his tongue and a biopsy confirmed the tumour was cancerous. However, by the time it was discovered, the cancer had already progressed to stage four. He told US TV show `Access Hollywood`: "I understand it`s a very difficult cancer tumour to find. It was under the tongue and it`s unusual, but I`m still doing my homework on it. I would say I have not forgiven…stage two would have been nicer than stage four."