No, there were about 4,000 bank robberies in the US in 2016 according to the FBI. I believe the 'here' in the claim means either Los Angeles or California, though it wouldn't make sense either way as the entire state of California had about 460.
Even if the FBI statistics miss some number bank robberies, the claim is still hard to believe. If 'here' means the US, then the FBI accidentally counted each bank robbery twice. If 'here' means Los Angeles, then Los Angeles has 6 times more robberies than are reported by the entire state.
Addendum: as pointed out in a comment by Reirab, and detailed by this Movies Stack Exchange question, the number of bank robberies in early-1990's Los Angeles was as high as 2,641. In 2013 there were only 212 robberies.
So, the filmmakers are simply using 25 year old data from Los Angeles' peak robbery years. If the movie had been set in the early 90's then the intro would be pretty much correct.
2016 FBI statistics
US Totals: According to official FBI statistics, there were a total of 4,251 crimes which were in violation of the Federal Bank Robbery and Incidental Crimes Statue. As can be seen in the below image from the paper, no part of the statistics could possibly be interpreted as 2,400 as claimed by the movie.
I gave them the benefit of the doubt and checked if they meant robberies during operating hours, when workers and clients could be taken hostage in typical movie style. That would also be wrong, as nearly all of the ~4000 robberies occurred during normal bank hours:
California/Los Angeles: If the opening statistics were referring to only Los Angeles or California and not the US, which might make sense given the setting(I haven't actually seen the movie), then it would also be wrong:
The above columns represent "Bank Robberies", "Bank Burglaries", "Bank Larcenies", and "Bank Extortions". There were 462 bank robberies in all of California, so the statistic cannot be accurate unless there are 6 times as many robberies than are reported, and even more than that if it's only for Los Angeles.
As a side note: the math indicates that it is only counting banks robbed during normal hours(if you don't care about Saturday), but even if the '2400' claim was true the math is still kind of wrong:
2400/50 = 46 robberies/week assuming 10 public holidays, 46/5 = 9.2 robberies/day for a 5 day work week, 9.2/8 = 1.15 robberies per hour, or about one every 51-52 minutes.
That's only 3-4 minutes more, so it's not like they needed to fudge the numbers to sound cool, it's simply a mistake. If the people who made this claim felt checking whether they divided numbers three times correctly was too much work for the intro splash, I doubt they did proper research for the number of robberies.