I had to check this claim, because inflation and purchasing power can fog people's memories. Using average U.S. ticket prices[1] adjusted to 2010 dollars[2], I get the following:
Year | Price | 2010 price adj. w/CPI
---------------------------------
2010 | 7.89 | 7.89
2005 | 6.41 | 7.15
2000 | 5.39 | 6.83
1995 | 4.35 | 6.22
1990 | 4.22 | 7.04
1985 | 3.55 | 7.19
1980 | 2.69 | 7.12
1975 | 2.03 | 8.23
1971 | 1.65 | 8.88
1967 | 1.22 | 7.96
1963 | 0.86 | 6.13
1958 | 0.68 | 5.13
1954 | 0.49 | 3.97
1948 | 0.36 | 3.26
Assuming my calculations are fair and correct, it appears that movie ticket prices quickly outpaced inflation until the late 60s, saw a peak in the 70s and then began a steady decline until the mid 90s. Since then they've been on a march upwards again.
So prices aren't historically high - that honor goes to the 1970s. And compared to sports events and concerts...?! I don't have the data, but I'd bet tickets for those have risen even faster, both of which, incidentally, suffer from the same competition movies do: high quality home theater setups and internet streaming. Which of course is the real problem - ticket prices need to drop against inflation, because entertain distribution options are not the same in 2011 as they were in 1971. The movie theater or concert venue does not have a monopoly on high definition entertainment any more.
Sources: