Nowhere near as glamorous as depicted. Let's start with the fact that less than half of law school graduates find a job after graduating. Then let's go to teh fact that the big firms (as semi-depicted on TV) only hire from the top 10 or 12 law schools. If you don't graduate from one of these schools with top marks (and 6 figures in debt), you get relegated to second tier law firms where a lot of your work will be personal injury cases, civil law suits (neighbor suing neighbor) etc. Then let's go on to the fact that right out of law school, assuming you can hook on with a law firm, you will be an associate - think working 60 - 100 hours a week where you won't see the inside of a courtroom. Then add in the pressure of making sure your billable hours meet whatever minimum level your law firm wants you to hit, all of this under very strict deadlines. Then add in teh pressure of working these long hours while still finding time to bring in new clients (called making rain). If you can't bring in new clients on a consistent basis, when you hit your 7 or 8 years (most law firms promote to partner at this point), then you will be kindly asked to seek alternate employment (you're not making profit for them).
Assuming you do make partner and can finally appear in court as lead counsel, the pressure switches a bit to settling out of court. Law firms do NOT want to go to court so they pressure their partners to settle (I know a lawyer - senior partner - who was lucky if he saw the inside of a court room 2 or 3 times a year and that was mostly to argue dismissals, never a trial). Most of your time is spent researching precedent (along with associates and paralegals), reviewing the work performed by the associates and paralegals, talking and meeting with clients, writing and filing briefs, motions, etc. You tell me whether this sounds glamorous.